| Mountain Ash to Iver | 123.75 mi (199.16 km) |
| Mountain Ash to Ivybridge | 92.35 mi (148.62 km) |
| Mountain Ash to Jarrow | 240.94 mi (387.76 km) |
| Mountain Ash to Johnstone | 290.59 mi (467.67 km) |
| Mountain Ash to Kearsley | 134.56 mi (216.55 km) |
| Mountain Ash to Keighley | 162.99 mi (262.31 km) |
| Mountain Ash to Kempston | 126.46 mi (203.51 km) |
| Mountain Ash to Kendal | 184.61 mi (297.11 km) |
| Mountain Ash to Kenilworth | 89.57 mi (144.15 km) |
| Mountain Ash to Kenley | 143.30 mi (230.61 km) |
| Mountain Ash to Kensington | 137.46 mi (221.22 km) |
| Mountain Ash to Kenton | 131.83 mi (212.16 km) |
| Mountain Ash to Kettering | 123.13 mi (198.17 km) |
| Mountain Ash to Kew Green | 135.75 mi (218.47 km) |
| Mountain Ash to Keynsham | 42.19 mi (67.90 km) |
